php 我的管理员显示 php 代码而不是登录

你好，我知道有很多关于这个问题的问题，但问题是我安装了 apache2 和 mysql 和 php 7.3 但是当我尝试输入 localhost/phpmyadmin 它显示

?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Main loader script
 *
 * @package PhpMyAdmin
 */
use PhpMyAdmin\Charsets;
use PhpMyAdmin\Config;
use PhpMyAdmin\Core;
use PhpMyAdmin\Display\GitRevision;
use PhpMyAdmin\LanguageManager;
use PhpMyAdmin\Message;
use PhpMyAdmin\RecentFavoriteTable;
use PhpMyAdmin\Relation;
use PhpMyAdmin\Response;
use PhpMyAdmin\Sanitize;
use PhpMyAdmin\Server\Select;
use PhpMyAdmin\ThemeManager;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use PhpMyAdmin\UserPreferences;

/**
 * Gets some core libraries and displays a top message if required
 */
require_once 'libraries/common.inc.php';

/**
 * pass variables to child pages
 */
$drops = array(
    'lang',
    'server',
    'collation_connection',
    'db',
    'table'
);
foreach ($drops as $each_drop) {
    if (array_key_exists($each_drop, $_GET)) {
        unset($_GET[$each_drop]);
    }
}
unset($drops, $each_drop);

/*
 * Black list of all scripts to which front-end must submit data.
 * Such scripts must not be loaded on home page.
 *
 */
$target_blacklist = array (
    'import.php', 'export.php'
);

// If we have a valid target, let's load that script instead
if (! empty($_REQUEST['target'])
    && is_string($_REQUEST['target'])
    && ! preg_match('/^index/', $_REQUEST['target'])
    && ! in_array($_REQUEST['target'], $target_blacklist)
    && Core::checkPageValidity($_REQUEST['target'], [], true)
) {
    include $_REQUEST['target'];
    exit;
}

if (isset($_REQUEST['ajax_request']) && ! empty($_REQUEST['access_time'])) {
    exit;
}.....etc

这是一个很长的代码，所以我不会全部包含它，除非你问我发生了什么是在安装了所有 Lamp 服务之后我输入了 php 我的管理员然后它抛出了 not found 所以我将这一行包含在 apache 配置中

Include /etc/phpmyadmin/apache.conf

然后这发生了

ubuntu 版本：Ubuntu 20.04 LTS 我将它下载为桌面

我如何安装 LAMP https://medium.com/better-programming/how-to-install-lamp-stack-on-ubuntu-db77ac018116

但请注意，并非一切工作都完美，有一些错误，我不得不检查其他资源，我进入了许多网站并在来到这里之前尝试了很多东西，所以如果你建议重新安装所有东西，我的环境可能会很糟糕，请指导我完成整个过程

更新： 我安装了 php 7.4.3，但我认为它没有启用，当我尝试时

a2enmod php7.4

它抛出

Considering dependency mpm_prefork for php7.4:
Considering conflict mpm_event for mpm_prefork:
ERROR: Module mpm_event is enabled - cannot proceed due to conflicts. It needs to be disabled first!
Considering conflict mpm_worker for mpm_prefork:
ERROR: Could not enable dependency mpm_prefork for php7.4, aborting

php cli 是 7.4.3 apache 日志

[Mon Apr 27 06:04:22.301065 2020] [mpm_event:notice] [pid 7212:tid 140619563371584] AH00489: Apache/2.4.41 (Ubuntu) configured -- resuming normal operations
[Mon Apr 27 06:04:22.301385 2020] [core:notice] [pid 7212:tid 140619563371584] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 27 06:05:42.547129 2020] [mpm_event:notice] [pid 7212:tid 140619563371584] AH00491: caught SIGTERM, shutting down
[Mon Apr 27 06:06:08.849938 2020] [mpm_event:notice] [pid 8424:tid 140393719311424] AH00489: Apache/2.4.41 (Ubuntu) configured -- resuming normal operations
[Mon Apr 27 06:06:08.850056 2020] [core:notice] [pid 8424:tid 140393719311424] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 27 06:08:59.234468 2020] [mpm_event:notice] [pid 8424:tid 140393719311424] AH00493: SIGUSR1 received.  Doing graceful restart
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message
[Mon Apr 27 06:08:59.242099 2020] [mpm_event:notice] [pid 8424:tid 140393719311424] AH00489: Apache/2.4.41 (Ubuntu) configured -- resuming normal operations
[Mon Apr 27 06:08:59.242111 2020] [core:notice] [pid 8424:tid 140393719311424] AH00094: Command line: '/usr/sbin/apache2'
[Mon Apr 27 06:09:07.878703 2020] [mpm_event:notice] [pid 8424:tid 140393719311424] AH00491: caught SIGTERM, shutting down
[Mon Apr 27 15:40:17.496415 2020] [mpm_event:notice] [pid 971:tid 140557889219648] AH00489: Apache/2.4.41 (Ubuntu) configured -- resuming normal operations
[Mon Apr 27 15:40:17.549391 2020] [core:notice] [pid 971:tid 140557889219648] AH00094: Command line: '/usr/sbin/apache2'

关于 phpinfotest 它显示了源代码

没有这样的文件 /etc/apache2/site-available/your_vhost.conf

我与此类似的是/etc/apache2/sites-available/000-default.conf